Heating system



W. A. COLLVER HEATING SYSTEM Original Filed April 21, 1922 4 Sheets-Sheet. 1

m ww 2 H m m A TTORNEYS Aug. 12 1924. 1,504,941

W. A. COLLVER HEATING SYSTEM Original Filed April 21, 1922 4 Sheets-Sheet 2 ATTORNEYS.

4, Sheets-Sheet 3 INVENTOH MLLIAHfiKO'LZVflE &

R o M I lJ By ATTORNEYS W. A. COLLVER HEATING SYSTEM Original Filed April 21, 1922 Aug. 12, 1924.

W. A. COLLVER HEATING SYSTEM Original Filed April 21, 192- 4 Sheets-Sheet t m VENTOR gaz g. MLLIAM HC LL m A TTORNEYS Patented Aug. 12, 1924.

UNITED STATES v 1,504,941 PATENT FFWE...

W LLI M LBZEB'II QQL VEJ-Ri, M BSHFIELD, OREGON, I

HEATING SYSTEM.

Original application filed April 21, 1922, Serial No. 555,861. Divided and this application filed. June 6,

r 1923- 'Serial No; 643,758.

To all whom it may concern:

Be it known that 1, WILLIAM ALBERT GoLLvEn, a citizen of the United Statesof America, and a resident of Marshfield, in the county of Coos and State of Oregon, have invented a new and Improved Heating System, of which the following is a description. My invention relates to a heater associated with a fireplace.

The present application is. a division of an' application filed by me April 21, 1922,

Serial No. 555,861

' The general object of theinvention is to provide air-heating .means to conduct air into and downwardly through the chimney laving novel valve means controlling the air Reference is to be had to the accompanying drawings forming a part of thisspecification, it being understood that the drawings are merely illustrative of one example of the invention.

Figure 1 is a front elevation of a fireplace and its casing embodying my invention g Figur 2 is a partly sectional front view; Figure 3 is a transverse vertical section; Figure 4 is, an enlarged horizontal section on the line l1, Figure 3; 1

Figure 5 is a perspective view with parts broken out showing the smoke stack and chimney assemblage;

Figures 6 and 7 are horizontal sectionsre spectively on the line 6-6 and 7-7, Figure 2; I

In carrying out my invention in accordance with the illustrated example, the fireplace 10 of any suitableform has a grate 11 made of pipe sections and connecting with a water bac-k as hereinafter referred to. A heater coil 12 with a covering plate 13 constitutes a door for the front of the fireplace, said door sliding in vertical guide slots 14 in the casing 15.;The numeral 16 indicates hanger chains secured at their'upperends as by bolts 18 to any. fixed part 19 of the chimney place' or frame structure. Said hanger chains are suitably connected with the bolts 18 and as here shown they are connected through'the medium of hanger rods 17 although they may be connected direct with said bolts 18. At the lower ends the hanger chains are secured to a pipe member appurtenant to the coil 12 at the top and secured by clasps around each pipe of coils 20.

The hanger chains 16 are for the purpose of allowing the coils 20 to spring in each portion thereof suflicient for the door to drop tothe bottom of the fireplace front.

. The lower end of one coil 20 extends downwardly as at 21 to a connection at the bottom of the coil 12 while the other side coil '20 connects with the top of said coil 12. The

upper ends of'the coils 20 connect respectively with range boilers 23 which advantageously have associated therewith a steam escape valve23. I

For holding the door in the lowered position a horizontal lockingshaft 24 is pro- 'vided having a handle 25 and formed with cams 26-that bear against locking levers 27 fulcrumed between their ends as at27 and having studs 28 projecting laterally outward upwardly and over sheaves 32 and then downwardly to a connection with the trunnions 33 of one of the hoop or ring scrapers 35 disposed within. a stack 36, said scrapers being connected by a vertical bar 3 1. One

of the scrapers 35 belowthe trunnions 33 carries a damper 37 provided in the stack 36. The damper 37 has a weight 39 at one side of the trunnions 33 and at the opposite side there is securedto the damper links 38 to which a chain A0 is secured, said chain hav- 'ing a spring .40 interposed therein, the chain extending downwardly to a connection with 1 a crankarm 41,011 a rear door 12 trunnion'ed between its ends as at 43 at an oblique opening at theback ctthe stack 36 at the base of the latter directly above the fireplace 10. The stack communicates with the fireplace- 10 at th'e top through an opening 14. When the door coil 12 is raised in the'slots 1 1 the scrapers 35 are lowered, thereby slackening the chain 10 and permitting the damper 37 to open. Damper 37 closes with the lowering of the door. coil.

At the bottom of the fireplace 10 is a door 53 'trunnioned between its ends as at 5 1 and leading to an ash-box 55 in the pit 56 below the'fireplace. A second liftdoor 57 is provided for the pit 56 at the backof the fireplace 10. i

The grate 11 has a water back 58 connected by pipes 59 with the boilers 23, the numeral 60 indicating the cold water inlet pipes of said boilers.

A by-pass heater pipe 61 is provided, extending transversely through the ash pit and rising at opposite sides of the grate, the upper ends of said pipe extending laterally inward to a connection at its opposite ends with the staek36, one of said ends disposed above the other, the damper 37 being disposed between the two pipe ends so as to force smoke through that end of the pipe 61 below the damper to cause the smoke to circulate through said pipe 61 and. to return to said stack" 36 above said damper 37. Thus, said pipe 61 aids in heating. the air in casing 15.

I provide in the chimney structure 63 surrounding the top of the smoke stack 36 air inlet boxes 62 having hinged inner sides or valves 64 to pass air inwardly through the chimney 63 to interior air passages 65, in which the air rises and passes over vertical baffle plates 66 and downward through air ducts 67' one side 68 of each of which rises to near the top of the chimney. In Figure 5 the top layers of the chimney are omitted in the interest of clearness as will be noted by comparing Figures 3 and 5. The air ducts 67 lead downwardly through a double wall bushing 69 set in the fixed structure 19 at the base of the chimney, the air passing from between the double walls laterally at opposite sides of the stack 36 into air pipes 70 which extend downwardly in the casing 15, the outer lower ends terminating in lateral bends, the outlet of each of which is controlled by a valve 71. The stemv 72 of the valve 71 has a cross arm 73 rock-ably mounted on the pipe 70 as at 73*" (Figure 6) and terminates in weighted arms 74 balancing the valve so that it will hang sensitive to changes of air pressure within the casing 15. Above the fireplace at each side the casing 15 has slatted ventilators 75, a rod 76 connecting the slats extending below the same for convenient operation. Said rod may have a knob 77 thereon slightly above the lower end. When the slats are opened the rod 76'may be set into a cup 78 on the front of the casing 15 to-prevent downward movement of said rod and thereby hold the slats open.

On top of the-chimney is a fixed plate 80 through which the smoke stack 36 has its outlet and above the plate 80 and spaced therefrom is a cap 81 aflording an air'in let and serving as a protector for the smoke stack; Said cap is suitably supported as by standards 81'. Within the cap 81 at the lower edge is a valve plate 82 above and parallel with the plate 82. Said plate 82 is hung as by links 83 on one arm of each of a plurality of levers 84 which lever of the back door 42 will also raised the scraper rings will lower in the stack 36 through the described connection with the cables 31 and in the raised 0- sition of the door and the lowered osition of the valve 37 the slack in the c ain will permit of the damper to swing open 3 thus allowing free passage of smoke. The lowering of the door will raise the scrapers 35 and th valve 37 disposing the latter between the opposite ends of the bypass 61 and thereby causing the smoke to circulate through said by-pass 61. The opening open damper by slacking chain at its lower end thus allowing free passage of smoke while trash is fed into fireplace. The back door 42 should never be opened unless the front door is closed.

Th inlet of air through the valve 64 and the passage of the air as described through the pipe will continue whenever the valves 71 are open. When the heat in the case 15 is highest the pressure of the heated air will close the valves 71. When, however, the ventilators are opened and the heated air allowed to escap into 'theroom, the air pressure in the case will lower and the weights 74 will open, the valve 71 permitting the passage of air from the inlet 62 through the described air passages and ducts surrounding the chimney 63 to and through the pipes 70 to the casing 15. The valve assemblage at .the top of the chimney 63 will function according to the draft through the stack 36, a strong draft serving to overcome the lowering tendency of the weight 86 and the weight descending as the draft reduces, thereby raising the opposite ends of the levers 84 to raise the "alve plate 82.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the exact details herein illustrated, since, manifestly, the same can be considerably varied without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention, I claim:

1. A fireplace heater including a fireplace, a smokestack, a chimney surrounding the slnokestack at the .upper end and having valved air inlets, air ducts disposed between th chimney and smokestack and leading upwardly from the inlets and then down- Wardly, a casing about the fireplace, air pipes in said: casing at opposite sides of the fireplace, and communicating With the air ducts to receive air therefrom, and balanced valves controlling the outlet of air from said pipes to the interior of the casing and subject to variations of pressure therein.

2. A fireplace heater including a fireplace, a Smokestack, a chimney surrounding the' Smokestack at the upper end and having valved air inlets, air ducts disposed between the chimney and smokestack and leading upwardly from the inlets and then downwardly, a casing about the fireplace, air pipes in said casing at opposite sides of the fireplace, and communicating with the air ducts to "receive air therefrom, and ba1- anced valves controlling the outlet of air from said pipes to the interior of the casing; together with ventilators in the casing to permit escape of air therefrom forvarying the pressure on said valves.

'WILLIAM ALBERT GOLLVER. 

